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Really interesting thread this. I went a slightly different route — picked up a Renault Zoe Z.E.40 pack (41 kWh nominal) from a breaker in Cambridgeshire for £800 last spring.
Norfolk Wanderer in Emergency & Backup Power 5 months ago thumb_up 4
OakTel | Posts: 412 | Location: Cumbria @SolarGeorge one thing I haven't seen mentioned yet — have you checked the surge rating vs your cooker's startup draw?
Oak Tel in Inverters & Chargers 5 months ago thumb_up 3
WhatsAFuse | 847 posts | ⚡ Van convert What battery chemistry are you running on the leisure side? If it's LiFePO4 and you haven't told the Orion that, it'll be using a profile designed for...
WhatsAFuse in Motorhome & Campervan 5 months ago thumb_up 9
@NeilSmith interesting one — I've got a JK BMS on my boat (100A passive version) and I had something similar early on.
Fenland OffGrid in Batteries & BMS 5 months ago thumb_up 8
MarineSam | 2,089 posts @Mike1997 Coming at this from a marine angle where dual-controller setups are pretty common — one thing I'd add is to check whether either MPPT has a "shared battery...
Marine Sam in Q&A 5 months ago
RussWilson | 312 posts @MuddyRanger Scotland in winter is basically solar's kryptonite, sadly. What's saving me is having a decent split-charge relay setup so any driving at all is actually...
Russ Wilson in General Chat 5 months ago thumb_up 1
@Roger1983 just to add a practical angle here — have you checked your SmartShunt's "Discharge floor" and "Charged voltage" settings are dialled in correctly for LiFePO4?
George Smith in General Chat 5 months ago thumb_up 9
SimonHenderson | Posts: 847 | Location: North Yorkshire @Trevor1975 worth checking whether the issue is specific to your phone's battery optimisation settings as well.
Simon Henderson in General Chat 5 months ago thumb_up 3
WattNick | Posts: 312 When I was setting up my garden office system I agonised over exactly this. Ended up with my Victron MultiPlus sitting practically on top of the battery cabinet — maybe 200mm...
Watt Nick in Motorhome & Campervan 5 months ago thumb_up 8
Interesting timing on this thread — I've been eyeing up Leaf modules for my static caravan setup where space isn't the constraint, but weight and second-life cost savings absolutely are. One thing...
Heather Soul in Motorhome & Campervan 5 months ago thumb_up 6
Reply by Paddy_2634: @Ian1968 nice setup for the Welsh borders — you'll definitely need that burner through winter!
Paddy in Off-Grid Cabins 5 months ago
CamperAndrea | 847 posts @NigeCampbell81 Honestly, yes — ditch the relay and grab a Victron Orion-Tr Smart DC-DC charger instead.
Camper Andrea in Motorhome & Campervan 5 months ago thumb_up 9
PeakVanLifer | 634 posts Had almost identical faff last January in my shepherd's hut build. Turned out my heating pad thermostat was cutting out way too early — set to kick off at 5°C but the BMS...
Peak VanLifer in Batteries & BMS 5 months ago thumb_up 3
I've been scratching my head for a couple of weeks now. My 100/30 SmartSolar has been throwing out maybe 1–2A on what should be brilliant harvesting days — panels are 2x 175W Renogy monos wired in...
T6 Life in Q&A 5 months ago
@MuddyRigger worth pulling the BMS log data via the JK app and filtering by timestamp against the warmest part of the day.
Solar Jo in Batteries & BMS 5 months ago thumb_up 1
PYW_VanLife | Posts: 847 | Location: South Wales @OakTel I made exactly the same swap about 18 months ago and honestly the difference was immediately noticeable.
PYW_VanLife in Motorhome & Campervan 5 months ago thumb_up 6
@QIH_Electric worth flagging that your Multiplus-II 5kVA is already your bottleneck before you even consider the battery capacity issue.
Taffy55 in Off-Grid Cabins 5 months ago thumb_up 1
Just to add a practical note to what @Wez1961 and @YorkshireVanLifer are saying — once you've got your voltages dialled in correctly on the Victron side, it's worth enabling the battery protection...
Chris in Monitoring & System Design 5 months ago thumb_up 6
@GlenWard running a shepherd's hut full time so battery reliability actually matters to me day-to-day.
BigAl27 in On a Budget 5 months ago thumb_up 7
StormyDrifter | 847 posts Had this exact drama on the boat last February — turns out my Low Temp Charge Protection was set to 5°C but the release temperature was also 5°C, so it was tripping and...
Stormy Drifter in Batteries & BMS 5 months ago thumb_up 3